TYPE3

[iec.git] / src / type3_AndroidCloud / anbox-master / src / anbox / qemu / qemud_message_processor.cpp

diff --git a/src/type3_AndroidCloud/anbox-master/src/anbox/qemu/qemud_message_processor.cpp b/src/type3_AndroidCloud/anbox-master/src/anbox/qemu/qemud_message_processor.cpp
new file mode 100644 (file)
index 0000000..c056447
--- /dev/null
+++ b/src/type3_AndroidCloud/anbox-master/src/anbox/qemu/qemud_message_processor.cpp
@@ -0,0 +1,90 @@
+/*
+ * Copyright (C) 2016 Simon Fels <morphis@gravedo.de>
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, or FITNESS FOR A PARTICULAR
+ * PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "anbox/qemu/qemud_message_processor.h"
+#include "anbox/logger.h"
+#include "anbox/utils.h"
+
+#include <string.h>
+
+namespace {
+static constexpr const long header_size{4};
+} // namespace
+
+namespace anbox {
+namespace qemu {
+QemudMessageProcessor::QemudMessageProcessor(
+    const std::shared_ptr<network::SocketMessenger> &messenger)
+    : messenger_(messenger) {}
+
+QemudMessageProcessor::~QemudMessageProcessor() {}
+
+bool QemudMessageProcessor::process_data(const std::vector<std::uint8_t> &data) {
+  for (const auto &byte : data)
+    buffer_.push_back(byte);
+
+  return process_commands();
+}
+
+bool QemudMessageProcessor::process_commands() {
+  while (true) {
+    if (buffer_.size() < header_size)
+      break;
+
+    char header[header_size] = {0};
+    ::memcpy(header, buffer_.data(), header_size);
+
+    unsigned int body_size = 0;
+    ::sscanf(header, "%04x", &body_size);
+
+    // Double check that we have enough data to ready the whole body. If
+    // not we have to wait until we have everything.
+    size_t total_size = header_size + body_size;
+    if (buffer_.size() < total_size)
+      break;
+
+    std::string command;
+    // Make sure we only copy as much bytes as we have to and not more
+    command.insert(0,
+                   reinterpret_cast<const char *>(buffer_.data()) + header_size,
+                   body_size);
+
+    handle_command(command);
+
+    const auto consumed = header_size + body_size;
+    buffer_.erase(buffer_.begin(), buffer_.begin() + consumed);
+
+    const auto remaining = buffer_.size() - consumed;
+    if (remaining <= 0)
+      break;
+  }
+
+  return true;
+}
+
+void QemudMessageProcessor::send_header(const size_t &size) {
+  char header[header_size + 1];
+  std::snprintf(header, header_size + 1, "%04zx", size);
+  messenger_->send(header, header_size);
+}
+
+void QemudMessageProcessor::finish_message() {
+  // Send terminating NULL byte
+  messenger_->send(static_cast<const char *>(""), 1);
+}
+}  // namespace qemu
+}  // namespace anbox